125B · 3 knobs
PedalPCB· PCB568
Skeptical Buffer
Based on the 29 Pedals EUNA· 1 other board clones it
- Category
- Utility· Buffers / Line Drivers
- Controls
- Harmonics · Bright · Low
- Price
- $12.00out of stock
- Tags
- 125B, Signal Schmalzigrrs
From the vendor
Controls
• Harmonics (Toggle switch)
• Bright (Toggle switch)
• Low (Toggle switch)
Specifications
• Runs on standard 9VDC pedal power
• Designed for a 125B enclosure with top-mounted jacks
Documentation
Schematic
The schematic is in the vendor's build document, page 4. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 42 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| R1 | 3M3 | 3.3M | Resistor, 1/4W | |
| R2 | 11K | 11k | Resistor, 1/4W | |
| R3 | 1K5 | 1.5k | Resistor, 1/4W | |
| R4 | 470R | 470 | Resistor, 1/4W | |
| R5 | 3M3 | 3.3M | Resistor, 1/4W | |
| R6 | 22K | 22k | Resistor, 1/4W | |
| R7 | 220K | 220k | Resistor, 1/4W | |
| R8 | 1K5 | 1.5k | Resistor, 1/4W | |
| R9 | 100K | 100k | Resistor, 1/4W | |
| R10 | 1K5 | 1.5k | Resistor, 1/4W | |
| R11 | 1K5 | 1.5k | Resistor, 1/4W | |
| R12 | 220K | 220k | Resistor, 1/4W | |
| R13 | 10R | 10 | Resistor, 1/4W | |
| R14 | 3M3 | 3.3M | Resistor, 1/4W | |
| CLR | 4K7 | 4.7k | Resistor, 1/4W | * LED current limiting resistor |
| Capacitors 17 | ||||
| C1 | 3p | 3p | Ceramic capacitor | |
| C2 | 1u | 1u | Film capacitor, 7.2 x 5.0mm | |
| C3 | 1u | 1u | Tantalum capacitor | |
| C4 | 100n | 100n | Film capacitor, 7.2 x 2.5mm | |
| C5 | 220n | 220n | Film capacitor, 7.2 x 5.0mm | |
| C6 | 10u | 10u | Tantalum capacitor | |
| C7 | 1u | 1u | Film capacitor, 7.2 x 5.0mm | |
| C8 | 1u | 1u | Tantalum capacitor | |
| C9 | 1u | 1u | Film capacitor, 7.2 x 5.0mm | |
| C10 | 47u | 47u | Tantalum capacitor | |
| C100 | 100u | 100u | Electrolytic capacitor, 5mm | 25V minimum |
| C101 | 10u | 10u | Electrolytic capacitor, 5mm | 25V minimum |
| C102 | 10u | 10u | Electrolytic capacitor, 5mm | 25V minimum |
| C103 | 10u | 10u | Electrolytic capacitor, 5mm | 25V minimum |
| C104 | 10u | 10u | Electrolytic capacitor, 5mm | 25V minimum |
| C105 | 10u | 10u | Electrolytic capacitor, 5mm | 25V minimum |
| C106 | 10u | 10u | Electrolytic capacitor, 5mm | 25V minimum |
| Diodes 5 | ||||
| D100 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| D101 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| D102 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| D103 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| D104 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| ICs 2 | ||||
| IC1 | TL072 | TL072 | Dual op-amp, DIP8 | |
| IC100 | TC1044SCPA | TC1044SCPA | Charge pump IC, DIP8 | |
| Switches 3 | ||||
| SW_B | ON/ON | ON/ON | Toggle switch, SPDT | 2-position (ON/ON) |
| SW_H | ON/ON | ON/ON | Toggle switch, SPDT | 2-position (ON/ON) |
| SW_L | ON/ON | ON/ON | Toggle switch, SPDT | 2-position (ON/ON) |
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